Dated for 4 years, married for 21. Sex varies from 3x a night to 3x per month. Depends on what's going on. Currently it's been about 3 weeks since... but prior to that there was a wicked stretch of at least once a night.
The quality ranges from a serviceable "need to get off" sex to moving *candle-lit* romantic sessions.
Three kids later, and she looks great to me all the time. Smells great. Sometimes yells too much... but I think that's a girl thing.
